We look at the division of 479423 by 42 
We want to figure out the number of times 479423 can be divided by 42.

Step 1:
If we divide 4 by 42, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Append the next digit (7) from the dividend to 4 and continue with: 47 / 42

Going ahead to step 2:
When dividing 47 by 42, we get 1 with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 42 away from 47, we end up with 5.
Bring next digit (9) of the dividend behind the 5 and repeat the process: 59 / 42

Step 3:
The number 42 fits into 59 1 times, leaving a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Deduct 42 from 59 and we're left with 17.
Bring next digit (4) of the dividend behind the 17 and repeat the process: 174 / 42

Moving on to step 4:
42 goes into 174 4 times with a remainder of 6.
The next digit of our result is 4. 
Result so far: 114.0
The remainder is 6 after subtracting 168 from 174.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 42

Let's proceed to step 5:
If we divide 62 by 42, we get 1 and a remainder of 20.
The number 1 becomes the next digit in our result. 
Result so far: 1141.0
Deduct 42 from 62 and we're left with 20.
Include the next digit (3) from the dividend after 20, then repeat: 203 / 42

Let's proceed to step 6:
203 divided by 42 is 4 with a remainder of 35.
Write down 4 as next digit of the result. 
Result so far: 11414.0
If we take 168 away from 203, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 7:
350 divided by 42 is 8 with a remainder of 14.
Put 8 as the next digit of the answer. 
Result so far: 11414.8
The remainder is 14 after subtracting 336 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 8:
42 goes into 140 3 times with a remainder of 14.
The next digit of our result is 3. 
Result so far: 11414.83
Deduct 126 from 140 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 9:
The number 42 fits into 140 3 times, leaving a remainder of 14.
Put 3 as the next digit of the answer. 
Result so far: 11414.833
If we take 126 away from 140, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final result is 11414.833 with a remainder of 0.0014.